def test_equality():
noise_1 = Noise(qubit_count=1, ascii_symbols=["foo"])
noise_2 = Noise(qubit_count=1, ascii_symbols=["foo"])
other_noise = Noise.AmplitudeDamping(gamma=0.5)
non_noise = "non noise"
assert noise_1 == noise_2
assert noise_1 is not noise_2
assert noise_1 != other_noise
assert noise_1 != non_noise
def amplitude_damping(target: QubitSetInput, gamma: float) -> Iterable[Instruction]:
"""Registers this function into the circuit class.
Args:
target (Qubit, int, or iterable of Qubit / int): Target qubit(s).
gamma (float): decaying rate of the amplitude damping channel.
Returns:
Iterable[Instruction]: `Iterable` of AmplitudeDamping instructions.
Examples:
>>> circ = Circuit().amplitude_damping(0, gamma=0.1)
"""
return [
Instruction(Noise.AmplitudeDamping(gamma=gamma), target=qubit)
for qubit in QubitSet(target)
]